Illinois Tool Works Inc.
Patent owner in reexamination·7 ex parte reexams
Illinois Tool Works Inc.'s patents have been the subject of 7 USPTO ex parte reexaminations. Its patents are most often challenged by Hongsheng Zhang. ExamPat indexes the full prosecution record for each proceeding, including office-action grounds, certificate outcomes, and downstream PTAB and Federal Circuit decisions.
Filings by year
Top requesters
Outcome track record
How reexams of this owner's patents resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Claim-survival rate
Defense metrics
Claim-survival rate, average pendency, and the open/closed split across every reexam of this owner's patents.
- Survival rate of closed proceedings
- Average pendency in months
Challengers & examiners
Which requesters most often challenge this owner's patents, and which examiners decide them.
- Top requesters
- Most frequent examiners
Recent reexaminations (7)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/014,432 | Jan 17, 2020 | 9,868,272 | Card Assembly And Method Of Manufacturing The Same | — | Closed |
| 90/012,601 | Sep 14, 2012 | 6,767,083 | FLUID EJECTING DEVICE WITH DROP VOLUME MODULATION CAPABILITIES | Hongsheng Zhang | Closed |
| 90/012,484 | Sep 10, 2012 | 7,611,011 | PEROXIDE PRESERVATION | — | Closed |
| 90/012,485 | Sep 10, 2012 | 6,795,998 | SWAB WITH PULL-TRUDED TIP | — | Closed |
| 90/012,477 | Sep 7, 2012 | 6,746,998 | NON-FLAMMABLE TERNARY CLEANING SOLVENT | — | Closed |
| 90/012,461 | Sep 4, 2012 | 6,463,848 | STRAPPER WITH IMPROVED WINDING AND CUTTING ASSEMBLY | — | Closed |
| 90/012,460 | Sep 4, 2012 | 6,663,040 | STRAPPER WITH IMPROVED WINDING AND CUTTING ASSEMBLY | — | Closed |
See the full reexam picture for Illinois Tool Works Inc.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.